High stability folding umbrella frame structure

Abstract

The utility model discloses a high stability folding umbrella frame structure is installed on the upper nest, lower nest of cooperation of up and down distribution, including branch bone and foldable main bone, wherein the main bone includes loop and long groove, loop bone, tail bone that are connected in turn, long groove inner end is connected with the upper nest, and branch bone is connected with long groove respectively lower nest, branch bone and loop bone are composed of two umbrella ribs side by side, and long groove and tail bone are single umbrella rib. The utility model provides a high stability folding umbrella frame structure which has good stability, is convenient to connect with the umbrella surface and reduces the influence on the folding effect after folding the umbrella.

Description

Technical Field

[0001] This utility model relates to a highly stable folding umbrella frame structure, belonging to the field of umbrella technology. Background Technology

[0002] Because metal umbrella ribs are prone to rust, deformation often occurs at the pivot points between the main ribs and the branch ribs, or at the pivot points between the upper and lower connecting terminals of the main and branch ribs and the honeycomb structure, reducing the umbrella's lifespan. To improve the shortcomings of metal umbrella ribs, FRP (fiberglass reinforced plastic) umbrella ribs were used instead. To enhance the supporting strength, a double-rib unit umbrella frame structure, as disclosed in publication number CN2352023Y, was developed. In this type of umbrella frame, both the main ribs and branch ribs use a double-rib structure, which is suitable for straight-handled umbrellas. Since the main ribs of a folding umbrella are composed of multiple segments, if each segment uses a double-rib structure, it will cause inconvenience in sewing the umbrella surface. Furthermore, if a double-rib structure is used for some ribs that bear very little supporting force, it will not only waste materials but also affect the closing effect of the umbrella due to the increased volume. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a highly stable folding umbrella frame structure that, while having good stability, facilitates connection with the umbrella surface and reduces the impact on the closing effect after the umbrella is closed, thus overcoming the shortcomings of the prior art.

[0004] The technical solution of this utility model is: a high-stability folding umbrella frame structure, installed on an upper and lower nest that are distributed and cooperate with each other, including support ribs and foldable main ribs, wherein the main ribs include a loop and a long groove, a loop rib, and a tail rib connected in sequence, the inner end of the long groove is connected to the upper nest, and the support ribs are connected to the lower nest and the long groove respectively. The support ribs and the loop ribs are composed of two umbrella ribs arranged side by side, and the long groove and the tail rib are single umbrella ribs.

[0005] Further, it includes a return line cover, which is connected to the middle of the return line rib and has a limiting hole for the two umbrella ribs of the return line rib to pass through. The return line cover has a groove for the return line to pass through.

[0006] Furthermore, the cross-section of the long groove is rectangular.

[0007] Furthermore, the upper and lower nests are connected and fitted together.

[0008] Furthermore, the outer wall of the upper nest and the inner wall of the lower nest are provided with matching protrusions and limiting grooves. When the upper nest and the lower nest are inserted and matched, the protrusions enter the limiting grooves.

[0009] By implementing this utility model, after the three-fold umbrella is opened, the supporting ribs play the role of supporting the main ribs. The inner end of the loop rib is connected to the long groove, and the outer end is connected to the tail rib, which plays a supporting role in the middle and bears the main force. The supporting ribs and loop ribs are composed of two umbrella ribs side by side, which can greatly improve the overall support strength and stability. The long groove is supported by the supporting ribs, and the tail rib only extends and closes, so the load-bearing force is small. Therefore, a single umbrella rib is sufficient and will not have a significant impact on the closing effect after the umbrella is closed. In addition, the structure of a single umbrella rib is also convenient for sewing with the umbrella surface. Attached Figure Description

[0010] Figure 1 This is a structural view of the present invention;

[0011] Figure 2 Diagram showing the connection between the return line cover and the return line / return line frame;

[0012] Figure 3 This diagram illustrates the connection between the upper and lower nests.

[0013] The diagram shows: Upper nest 1; Lower nest 2; Support bone 3; Long groove 4; Backline bone 5; Tail bone 6; Backline cover 7; Line groove 8; Limiting groove 9; Protrusion 10; Backline 11. Detailed Implementation

[0014] Embodiments of this utility model: such as Figures 1 to 3 As shown, a highly stable folding umbrella frame structure is installed on an upper nest 1 and a lower nest 2 that are distributed and cooperate with each other. It includes support ribs 3 and foldable main ribs, wherein the main ribs include loops ( Figure 1 (Not marked in the text), and sequentially connected long groove 4, loop rib 5, and tailbone 6. The inner end of long groove 4 is connected to the upper nest 2, the outer end of branch rib 3 is connected to long groove 4, and the inner end is connected to lower nest 2. A loop rib 11 connects long groove 4 to tailbone 6, and a loop rib 3 connects branch rib 3 to loop rib 5. In this application, branch rib 3 and loop rib 5 are composed of two umbrella ribs side by side, while long groove 4 and tailbone 6 are single umbrella ribs. The umbrella ribs that make up branch rib 3 and loop rib 5 are made of carbon fiber, making branch rib 3 and loop rib 5 lightweight and high-strength, and not easily deformed or broken during use. When the three-fold umbrella is opened, the branch rib 3 is strong and the loop rib 5 ... Rib 3 serves to support the main rib. The inner end of the rib 5 connects to the long rib 4, and the outer end connects to the tail rib 6. It plays a supporting role in the middle and bears the main force. The rib 3 and the rib 5 are composed of two umbrella ribs side by side, which can greatly improve the overall support strength of the umbrella frame and effectively prevent lateral movement and improve stability. The long groove 4 is supported by the rib 3, and the tail rib 6 only extends and closes, so the load is small. Therefore, a single umbrella rib is sufficient and will not have a significant impact on the closing effect after the umbrella is closed. In addition, the structure of a single umbrella rib is also convenient for sewing with the umbrella surface.

[0015] As a preferred embodiment, the umbrella includes a return line cover 7, which is connected to the middle of the return line rib 5. The return line cover 7 has a limiting hole for the two umbrella ribs of the return line rib 5 to pass through. The return line cover 7 has a groove 8 through which the return line 11 passes. When the return line rib 5 is long, the two umbrella ribs are prone to separation in the middle position, which will cause uneven force and affect the strength. By fixing it in the middle position with the return line cover 7, it can always be evenly stressed and has better support strength. At the same time, the groove 8 limits the return line 11 that passes through and is used to connect the tail rib 6 and the long groove 4. After the umbrella is closed, the return line is tightened and limited, so that the long groove 4, the return line rib 5, and the tail rib 6 are kept in a gathered state, so that the umbrella is kept in a gathered state after folding and will not loosen.

[0016] As a preferred option, the long groove 4 has a rectangular cross-section, providing a larger support and connection surface, and a more stable connection between the umbrella surface support and the heel support 3.

[0017] As a preferred option, the upper nest 1 and the lower nest 2 are inserted together. When the umbrella opens, the lower nest 2 slides up the middle rod until the lower nest 1 is inserted into the lower nest 2, connecting the two together, preventing the lower nest 2 from shaking, and improving the stability when the umbrella is open.

[0018] As a preferred embodiment, several protrusions 10 are evenly distributed on the outer wall of the upper nest 1, and the inner wall of the lower nest 2 is provided with protrusions 10 and limiting grooves 9. When the upper nest 1 and the lower nest 2 are inserted and engaged, the protrusions 10 enter the limiting grooves 9, making the connection between the two more stable, preventing the lower nest 2 from rotating, and improving the stability in the open state. The protrusions 10 are larger at the top and smaller at the bottom, while the limiting grooves 9 are larger at the top and smaller at the bottom, such as in the shape of an isosceles trapezoid, so that the protrusions 10 and the limiting grooves 9 can be smoothly guided to engage when the upper nest 1 and the lower nest 2 are inserted and engaged.

Claims

1. A highly stable folding umbrella frame structure, installed on upper and lower nests that are distributed and cooperate with each other, comprising support ribs and foldable main ribs, wherein the main ribs include a loop and a long groove, a loop rib, and a tail rib connected in sequence, the inner end of the long groove is connected to the upper nest, and the support ribs are respectively connected to the lower nest and the long groove, characterized in that: The lateral and lateral vertebrae are composed of two umbilical ribs arranged side by side, while the long groove and coccyx are composed of a single umbilical rib.

2. The high-stability folding umbrella frame structure according to claim 1, characterized in that: Includes a return line cover, which is connected to the middle of the return line rib and has a limiting hole for the two umbrella ribs of the return line rib to pass through. The return line cover has a groove for the return line to pass through.

3. The high-stability folding umbrella frame structure according to claim 1, characterized in that: The cross-section of the long groove is rectangular.

4. The high-stability folding umbrella frame structure according to any one of claims 1 to 3, characterized in that: The upper and lower nests are connected and fitted together.

5. The high-stability folding umbrella frame structure according to claim 4, characterized in that: The outer wall of the upper nest and the inner wall of the lower nest are provided with matching protrusions and limiting grooves. When the upper nest and the lower nest are inserted and matched, the protrusions enter the limiting grooves.

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